an 80mm spindle isn’t recomended for the lr4. It can cause some issues. A quick search about the topic can get some light. We all make the mods from remodeling the mesh/stl files. I dont think there is an 80mm spindle mount already.
2.2kw is some kind of waste imo. I dont know exactly what your use case is but an 0.8kw or 1.5kw spindle is plenty. I run one of my others cnc with an 1.5kw spindle and i dont think i’ve found one job that needs the full power of it @110v.
just for reference
Also: as a constructive criticism. Try to keep just one thread so we can follow everything in one post. Its harder to track down any previous info, for example, we already talked (in the one you asked about the 69mm monts for the dewalt) about 80mm spindles vs 65mm spindles in your previous post and what mounts worked. (Makita mounts are 65mm)